Comber calender roll



Aug. 15, 1944. F. CROCKETT COMBER CALENDER ROLL Filed Aug. 13, 1942 at] X QVENTOR.

Patented Aug. 15, 1944 COMBER CALENDER ROLL Frank L. Crockett, Tenants Harbor, Maine, as-

signor to Whitin Machine Works, Whitinsville, Mass, a corporation of Massachusetts Application August 13, 1942, Serial No. 454,752

11 Claims.

which constitute obstructions to the wiping of such table, thus greatly facilitating the importam; work of keeping the comber clean. The invention consists of a hinged bracket on which the journal support of the top roll is carried, the form and arrangementof such bracket adapting the top roll to be turned upwardly about the hinge axis to an upright or erect position and adapting it to retain such position until manually returned to its'working relation in which it rests on the lower roll. While in upright position the trumpet and the lower calender roll are both exposed and the Wiping of the latter becomes merely an incident of wiping the smooth top of the table. The invention further comprises the form of the top roll itself whereby it can be turned back and forh between its two positions without touching the fluted portion thereof which engages the fibers of the sliver, and whereby an adequate nipping pressure is produced without the use of an excessive heavy roll.

This application is a continuation in part of my pending application, Serial No. 359,385, filed October 2, 1940.

In the accompanying drawing Fig. 1 is a front elevation of a portion of a comber equipped with the new calender rolls, the top roll being shown in upright position, and parts being in section.

Fig. 2 is a top plan with the top roll in its working position, and Fig. 3 is a section on the line III--III of Fig. 1. a

The sliver table marked l overlies the horizontal shaft 2 which carries the lower calenderrolls 3 for all the combing heads of the comber. These rolls are fluted and their upper portions project through recesses 4 cut in the table. The trumpet 5, for each pair of rolls, also occupies the same recess in its rear part, so that both are in the same recess, and the trumpet delivers the sliver close into the bite of the two rolls. It is shown as pivoted on a fixed axis 6 which adapts it to function as part of a stop-motion system not shown.

The top calender roll I of this invention is journalled on a stub shaft 8, which is supplied with a so-called oilless bearing bushing 9 and secured by set-screw or otherwise in the center of a shrouded bracket l0. This bracket Ii! is provided with two spaced apart hinge lugs II on its lower side by which it is hinged, as by hinge pin l2, to a hinge plate l3 secured on the sliver table I by the bolts M or in any appropriate way. The hinge axis 12 is thus close to the surface of the table, and the top of the hinge-plate [3 which is smooth and flat receives the impact of the hub or center part of the bracket I0 when the latter is turned on its axis as far as it will go, in which position the top roll is erect or upright as shown in Fig. 1, and the hinge plate supports it in that position until it is manually returned.

The top' roll is unsymmetrical, having its thick fluted or body part disposed at one end immediately adjacent to the hinged bracket where'the ends of the flutes underlie the bracket shroud 15. The other, or free end, of the roll overhangs the lower roll and is formed as a boss [6, not fluted and. of somewhat smaller diameter, so that it forms a, convenient hand-grip for turning the roll on the hinge axis, as well as for rotating it on its own axis in the process of threading up.

When in its horizontal or working position, in-

, dicated by the dotted lines in Fig. 1, the fluted part of the top roll I rests on the sliver being drawn from the trumpet 5 orit may rest on the lower roll in the absence of sliver, but it has no other support or bracefor its free end, the spacing of the hinge lugs H rendering this unnecessary. Thus when the roll is turned upright the table surface at and around the end (left hand) of the lower roll is entirely clear of any member which would constitute obstruction to the wiping of the sliver table or interfere with the wiping out of the grooves of the lower roll which requires a wiping movement longitudinally thereof. This absence of table obstructions marks a particular advantage over all prior combers.

As herein disclosed the stub shaft 8 is provided with a head I! which confines the top roll thereon and which is desirably elongated so that it extends well beyond the fluted section and is therefore capable of much the same functions as the boss IS, the interior of which it occupies in the present case. That is to say, it adds its weight to the nipping pressure, but the particular manner of journalling the roll on the bracket is obviously subject to variation according to preference as is also the detail of the bracket itself.

I claim: 1. In a comber the combination with the sliver table and a lower calender roll operating with its upper side protruding through a recess in saidtable, of a coacting top calendar roll and a hinged bracket carrying the journal of such roll, such bracket having its hinge axis close to the table surface and shaped to support the roll in an upright position, removed from and exposing the lower calendar roll for easy wiping.

2. In a comber, the combination of a recessed sliver table, a lower calender roll and a trumpet both occupying said recess, a top calendar roll coacting with said lower roll to draw sliver from the trumpet and a hinged bracket carrying the journal bearing for said top roll, the hinge axis of said bracket being located on the sliver table adjacent one end of said lower roll whereby said top roll can be turned on said axis to expose said trumpet and lower roll.

v3. In ,a comber, the combination with a recessed sliver table, a lower calender roll mounted with its top side protruding through said recess, a coacting top roll therefor, a journal bearing for said top roll and means located on said table, entirely at one end of said lower roll for supporting said journal bearing, the surface of said table around the other end of said lower roll being 'free .of upstanding obstruction to the v Wiping of the table at said other end of the lower roll.

'4.'In a'. comber, the combination with a re cessed sliver table, a lower calender roll operating with its upper side protruding through the recess, a top calendar roll coacting with said upper side, and means for supporting said top roll located on the table wholly at one end of said lower rolla'nd including a bracket hinged to ing as a, combined hand grip and weighting means for the fluted section.

6'.1In' a comber, a lower calender roll, a top roll therefor, a journal bearing for the latter and a hinged bracket carrying said bearing, whereby the toproll can be turned to upright position, said top r011 having a fluted section and said bracket having a shroud protecting the end of said section, the free end of said top roll being unobstructed and serving as a combined hand grip and weighting means vfor the fluted section.

7. In a comber, a sliver table having a recess, a lower calender roll operating in the recess, a top calender roll therefor, a bracket hinged to the table adjacent the recess therein and carrying the journal of said top roll, the hinge axis of said bracket being located close to the table surface whereby the top roll may be supported in upright position by said bracket, the end of the top roll adjacent being fluted and its other end being free of support save by said bracket and the surface or the sliver table adjacent said free end being devoid of obstructions to the wiping of said lower roll and table.

8. In a comber, the combination with the sliver table, of a lower calender roll operating with its upper side in a recess in said table, a bracket hinged to said table, and an unsymmetrical top calender roll wholly supported by said bracket and comprising a fluted body section at one end and a boss at the other end, such bracket having its hinge axis located on the sliver table at one end of said lower roll.

9. In a comber, the combination of a recessed sliver table, a lower calender roll and a trumpet both occupying said recess, a bracket hinged to said table at one end of said recess and an unsymmetrical top roll wholly supported on said hinged bracket at one end of the roll, and comprising a fluted section adjacent said bracket and a boss at its free end overhanging said lower roll.

10. In a comber, the combination of a lower calender roll, a hinged bracket at one end thereof and an unsymmetrical top calender roll therefor comprising a fluted section and a boss and wholly supported on said bracket by its end opposite the boss, the boss end of said roll being free and unobstructed.

11. In a comber, a lower calender roll, a hinged bracket, a top calender roll having its journal bearing wholly carried on said bracket by one of its ends, the other end of said top roll being provided with a member overhanging said lower roll and serving as a hand grip for turning said roll about the axis of said bracket.

FRANK L. CROCKET'I. 

